//
//  Atom.m
//  oc
//
//  Created by mac on 16-4-7.
//  Copyright (c) 2016年 wangchenglong. All rights reserved.
//

#import "Atom.h"

@implementation Atom
-(id)init{
    if((self=[super init]))
    {
    
    _chemicalElement= @"None";
    }
    return self;
}
-(NSUInteger)massNumber{
    return 0;
}

@end
